Daily Math Challenge

Sharpen your math skills with a new problem every Tuesday to Friday. These daily challenges are perfect for those who enjoy quick, engaging puzzles.

Problem 1528

Posted: March 20, 2026

Observe the lattice of numbers?

1
2 3 4
5 6 7 8 9
10 11 12 13 14 15 16

What would be the sum of the numbers on the 20th row?

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